Improvement in automatic boiler-feeders



HENRYMCG'ANN, OF CLEVELAND, HIO.

l team Paw/w No. 84,642, ma 'December 1, 186s.'

mrRovmvmNT IN AUTOMATIC Bomen-FEEDERS.

The Schedule referred to in these Letters Patent and making part: of thesame.

To all whom it may concer/n.:

Be it known that I, HENRY MGGANN, of Cleveland, in the county ofCuyahoga, and State of Ohio, have invented certain new and usefulImprovements in a Device for Feeding Steam-Boilers; and I do herebydeclare that the following is a full and complete description of thesame, reference being had to the accompanying drawings, making part ofthis specification, in which- Y Figure l is a side view o f theapparatus.

Figures 2 and 3, a modification of g. 1'.

Figure 4, a detached vertical section of fig. l.

Figure 5, a-side view of iig. 3.

Figure 6 will be referred to hereinafter.

Like letters of reference referto like parts in the diierent viewspresented. f

The nature of 'this invention relates to a device for supplying water tosteam-boilers, so that the water therein shall remain, at all times, ator near the waterline. When it falls below said line, the devicevoperates, to supply the' deficiency, and shuts oi the waterwhen theproper amount has been supplied to the boiler, the apparatus beingautomatic in its operation.

In iig. 1, A represents a case or shell, in which is a pendulum-float,indicated byl the dotted lines B.

Said float is attached to a shaft, a, projected, through the side of theshell, (and in which it has its bearings,) into a supplementary shell orwater-chamber; O.

To the end of said shaft is secured an arm, D, the lower end of whichforms the segment of a circle,pro vided with teeth or cogs, b, thepurpose of which will hereinafter be shown.

vE is a valve-seat, and of which F is the valve," in the upper side ofwhich are cogs or teeth, in which the ,teeth of the segment referred toare'made to engage, as shown in fig. 4, and by which said'valve isoperated reciprocally, as and for a purpose presently shown.

G is an induction-water pipe, and YH, the eductionpipe, leading from thechest C to the boiler.

The practical applicationaud operationof this apparatus are as follows,viz:

It is attached to the head of the boiler, or at any other convenientplace, in 'the position shown in iig. 1,.

cover, made to t water-tight, thus enclosing the valvel in awater-compartment, thereby equalizing the pressure of the water on thevalve, and which is conducted into the same through the pipe G,connected to the pump.

The valve is operated by means of the iioat, which, as the Water intheboiler descends, will also descend` with it, as indicated by thedotted lines B, thereby moving the arm D, which, being engaged in thevalve,; will move it to the right, and bring the parts c inopen relationwith the parts e in the valve-seat, as shown in fig. 4, thereby allowingthe water to iiow from thel chest, through the valve and pipe H, to

-same when at the line of safety, thus automatically regulating thewater in the boiler, so that it cannot descend below the lowestwater-line. Hence all danger of collapse from a deciency of water isavoided.

`In a former patent granted to me for a similar device, the stop-cockwhich was employed in that appaf ratus, instead of a sliding valve, wasnot enclosed in a water-chest, as is the valve represented above, butwas uncovered, the objection to which is that,.unless the plug of thecock were made to iit closely'tight, it would leak, and thus make a wetplace about under it; also, in consequence of its beingfitted so tight,the plug would bind in the chamber of the cock, so that the iioatsometimes failed to operate it, and therebyvdestroy its eiiiciency; but,by the use of a valve, and enclosing itin a chest, as above described,this diiiiculty is avoided; or, if the stop-cock is used, instead of avalve, and enclosed, as shown in figs. 3 and 5, in a waterchest, I, theplug may be fitted loosely in the chamber, and thus be free to move bythe float, and, though it 'may leak, the water cannot iiud its way tothe outside ofthe chest, but is conveyed back into the cock thence tothe boiler. p

Fig. 6 represents a modied form of the valve, and which consists of acircular valve, J, iitted to a corresponding seat, K, the valve nbeingprovided with cogs or teeth, in which the segment-gear of the arm D ismade to engage, so that the valve is opened and shut as the float risesor falls.

What I claim as my invention, and desire to secure by Letters Patent, i.

l. The combination of the slide-valve F with the arm. D, shaft a, floatB, case A, and chest C, substantially as speciiied.

2. The supplementary chest O, in combination with the shell A, as setforth.

HENRY MGGANN.-

Witnesses W. H. Brummen, FRANK S. ALBEN.

